Backup camera split to aftermarket h/u but has interference - Ford Powerstroke Diesel Forum
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post #1 of 10 Old 08-11-2012, 07:02 PM Thread Starter
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Backup camera split to aftermarket h/u but has interference

I have split the signal from the OEM b/u camera to where it feeds the mirror and the aftermarket DNX9990HD Kenwood head unit. After tapping into the wires in the passenger side A-Pillar, I put the truck in reverse to test it as I plugged it in. The signal looked great until I actually plugged it into the head unit. Once plugged in, it displays rolling lines on both screens(mirror and h/u). I then unplugged it and it went back to normal on the mirror. Plug it in and it gets the rolling lines on both. So it the actual connection into the head unit that is sending interference or possibly the signal needs to be amplified before being split. My thinking is it is actually an interference introduced by a faulty ground. I checked the grounds and couldn't find an issue.

Anyone had any experience with this?
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post #2 of 10 Old 08-12-2012, 02:01 PM Thread Starter
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I played with it some more today and if I unplug the plug on the back of the mirror the signal on the head unit clears up and the picture looks much better. So I am leaning towards the signal isn't strong enough to be split without being amplified. So my plan now is to buy a powered signal amplifier, take input directly off the wires in the a pillar, amplify the signal and feed both the head unit and the mirror(through the wires in the a-pillar that were cut to feed the amplifier). May be a while before I do that but I will update if and when I do....but I'm fairly confident this will resolve it.
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post #3 of 10 Old 08-13-2012, 02:18 AM
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I wanted to do the same thing. Let me know how that works out.

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post #4 of 10 Old 08-19-2012, 07:27 PM Thread Starter
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I bought a PAC VA26 video amp/splitter to be able to have both front and the OEM rear cameras. There is still signifigant interference. I haven't figured out where it is coming from yet. Just wanted to update that simply amplifying the signal didn't help completely. I'm going to re-run my grounds and power feeds and try to shield the signal wires better. Will update once done.

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post #5 of 10 Old 08-29-2012, 08:06 AM
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Same issue

I ran into the same problem but I just decided to cut the signal to the rearview and it corrected the problem on the headunit. I figured the signal was too weak for both and frankly the r/v mirror display was too small anyway.


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post #6 of 10 Old 08-29-2012, 11:39 AM Thread Starter
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I did the same thing. I have a strong signal bt the PAC VA26 that I bought apparently was bad according to PAC. I'm waiting on the reseller to receive it and send me a new one. That will serve as the switcher for the front and rear cameras. Other than that, it works fine going just to the head unit. Clear signal and all.

2010 CCLB Lariat Black w/ Adobe Accent - 2.5 inch lift springs front, 4 inch blocks in back, DPF/Cat deleted with Mini Max, S&B CAI, Kenwood DNX9990HD, RF Punch 10" downfiring in custom center console, RF 300 watt amp, Bakflip F1 bedcover with BakBox, OEM rear camera, Jensen front camera routed through both mirror and H/U with switcher, billet grill,......
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post #7 of 10 Old 10-25-2012, 02:45 PM
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I would think a relay with the backup wire and an additional 12V power source wold fix the problem.
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post #8 of 10 Old 11-04-2012, 04:55 PM
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What did it take to hook up the factory back up camera to your Kenwood? I bought a OEM rear camera and want to hook it up to my Kenwood DDX.

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post #9 of 10 Old 11-05-2012, 08:25 AM Thread Starter
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I tapped into the wires at the pass. pillar then ran directly into the head unit by soldering a RCA stye connector on. You can get those at radio shack or online....search for RCA connector or phono plugs if you aren't familiar with them. Once you have that connector, it plugs directly into my head unit and yours should as well if it accepts video input.

2010 CCLB Lariat Black w/ Adobe Accent - 2.5 inch lift springs front, 4 inch blocks in back, DPF/Cat deleted with Mini Max, S&B CAI, Kenwood DNX9990HD, RF Punch 10" downfiring in custom center console, RF 300 watt amp, Bakflip F1 bedcover with BakBox, OEM rear camera, Jensen front camera routed through both mirror and H/U with switcher, billet grill,......
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post #10 of 10 Old 07-21-2013, 01:41 PM
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Quote:
Originally Posted by f250Jason View Post
I tapped into the wires at the pass. pillar then ran directly into the head unit by soldering a RCA stye connector on. You can get those at radio shack or online....search for RCA connector or phono plugs if you aren't familiar with them. Once you have that connector, it plugs directly into my head unit and yours should as well if it accepts video input.
Where did you find the wire's for the cam and what colors are they?? JUst got a Kenwood unit to put in my truck and I think I'm going to have to tap into these wires with an RCA jack.

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